{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.897649,-0.440710,0.000000,0.000000,0.285509,-0.581532,0.761778,0.000000,-0.334774,0.681877,0.650362,0.000000,-2138267.003989,4355272.913163,4126172.766254,1],    "boundingVolume": {    "region": [2.027110,0.707947,2.027262,0.708174,0.000000,18.456261]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/4/6/2_1796817.b3dm"}}}